Animal transporting system

ABSTRACT

An animal transporting system for easily loading, unloading, sorting, separating and transporting animals within an enclosed structure. The inventive device includes a frame attached to a truck, a ramp attached to the frame that is extendable from the frame, a pair of first doors pivotally attached to the frame adjacent the ramp, a pair of second doors pivotally attached to the first doors, a rear door, and a rear ramp structure telescoping rearwardly and downwardly for the loading of animals at ground level.

CROSS REFERENCE TO RELATED APPLICATIONS

I hereby claim benefit under Title 35, United States Code, Section 120of U.S. patent application Ser. No. 09/717,727 filed Nov. 20, 2000. Thisapplication is a continuation-in-part of the Ser. No. 09/717,727application. The Ser. No. 09/717,727 application is now U.S. Pat. No.6,439,825. The Ser. No. 09/717,727 application is hereby incorporated byreference into this application.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable to this application.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to animal transporting devicesand more specifically it relates to an animal transporting system foreasily loading, unloading, sorting and transporting animals within anenclosed structure.

2. Description of the Prior Art

Animal transporting devices have been in use for years. Typically, ananimal transporting device is comprised of a ground or dock leveltrailer that is connected to a vehicle. Conventional animal trailershave a rear door exposing an interior portion having one or more gatesfor creating various sizes of holding pens for the animals.

The most significant problem with conventional animal trailers is thatthey generally require more than one person to load, sort, transport,and unload animals from within. Another problem is that many groundlevel portable fences are required to load and unload the animals fromthe trailer. Another problem is that gates to a feed yard pen must beopened to allow the trailer to be positioned within the interior of thefeed yard pen.

While these devices may be suitable for the particular purpose to whichthey address, they are not as suitable for easily loading, unloading,sorting and transporting high stressed, weakened, sick, or recoveringanimals within an enclosed structure. Conventional animal trailers arenot efficient to utilize when loading and unloading one or more animals.

In these respects, the animal transporting system according to thepresent invention substantially departs from the conventional conceptsand designs of the prior art, and in so doing provides an apparatusprimarily developed for the purpose of easily loading, unloading,sorting, and transporting animals within an enclosed structure.

SUMMARY OF THE INVENTION

In view of the foregoing disadvantages inherent in the known types ofanimal trailers now present in the prior art, the present inventionprovides a new animal transporting system construction wherein the samecan be utilized for easily loading, unloading, sorting, and transportinganimals within an enclosed structure with the operator removed or on theexterior of said structure.

The general purpose of the present invention, which will be describedsubsequently in greater detail, is to provide a new animal transportingsystem that has many of the advantages of the animal transportingdevices mentioned heretofore and many novel features that result in anew animal transporting system which is not anticipated, renderedobvious, suggested, or even implied by any of the prior art animaltransporting devices, either alone or in any combination thereof.

To attain this, the present invention generally comprises a frameattached to a truck, a horizontal deck attached to the frame that isextendable from the frame, a pair of first doors pivotally attached tothe frame adjacent the horizontal deck, a pair of second doors pivotallyattached to the first doors, and a rear door, and a rear ramp structuretelescoping rearwardly and downwardly for the loading of animals atground level. When the horizontal deck is fully extended, the firstdoors are extended from the frame along side the horizontal deck forretaining animals being loaded and unloaded from the frame. When theramp, which is connected to the horizontal deck, is extended the seconddoors are extended from the first doors retaining animals being loadedor unloaded. The frame is formed for receiving one or more animalswithin having a plurality of partitions and inner doors which retain anddirect animals depending upon whether they are closed or opened. A sidedoor and a rear door are positioned within the frame for allowingloading and unloading animals from heightened areas such as a dock. Witha level lift attachment, animals may be loaded from ground level at sideand rear doors. A catwalk is attached to the upper portion of the framefor allowing an individual to view the interior portion of the frame.

There has thus been outlined, rather broadly, the more importantfeatures of the invention in order that the detailed description thereofmay be better understood, and in order that the present contribution tothe art may be better appreciated. There are additional features of theinvention that will be described hereinafter and that will form thesubject matter of the claims appended hereto.

In this respect, before explaining at least one embodiment of theinvention in detail, it is to be understood that the invention is notlimited in its application to the details of construction and to thearrangements of the components set forth in the following description orillustrated in the drawings. The invention is capable of otherembodiments and of being practiced and carried out in various ways.Also, it is to be understood that the phraseology and terminologyemployed herein are for the purpose of the description and should not beregarded as limiting.

A primary object of the present invention is to provide an animaltransporting system that will overcome the shortcomings of the prior artdevices.

A second object is to provide an animal transporting system for easilyloading, unloading, sorting, and transporting animals within an enclosedstructure.

A further object is to provide an animal transporting system that allowsfor the loading and unloading of animals at ground level into the reardoor thereof.

Another object is to provide an animal transporting system that does notrequire additional portable fences, ramps or chutes to load and unloadanimals from within the holding structure.

An additional object is to provide an animal transporting system thatallows only one individual to load, unload, sort and transport animals.

A further object is to provide an animal transporting system thatencourages free and natural movement of animals thereby requiring nooutside stimulation such as electrical shockers.

Another object is to provide an animal transporting system that allowsan individual to safely load, sort, separate, and unload animals.

A further object is to provide an animal transporting system that doesnot require an individual to enter the interior with the animals.

A further object is to provide an animal transporting system that simplein construction thereby creating a strong and durable structure.

A further object is to provide an animal transporting system that can beutilized to load and unload animals within feed yard pens withoutrequiring a gate to be opened.

A further object is to provide an animal transporting system that allowssick animals to be transported thereby reducing stress to the animal.

A further object is to provide an animal transporting system thatreduces labor costs.

A further object is to provide an animal transporting system that can beutilized within feed yards, zoos and various other locations.

A further object is to provide an animal transporting system that willsort, deliver and return animals from hospital pens within a feedlot totheir home pens.

A further object is to provide a low-stress, calm, humane way totransport sick and weakened animals with minimal interaction betweenanimals and people.

A further object is to provide an animal transporting system that allowsanimals to be loaded and unloaded over gates, fences, feed bunks andvarious other structures.

A further object is to provide an animal transporting system that canload or unload animals at a dock.

Other objects and advantages of the present invention will becomeobvious to the reader and it is intended that these objects andadvantages are within the scope of the present invention.

To the accomplishment of the above and related objects, this inventionmay be embodied in the form illustrated in the accompanying drawings,attention being called to the fact, however, that the drawings areillustrative only, and that changes may be made in the specificconstruction illustrated and described within the scope of the appendedclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other objects, features and attendant advantages of the presentinvention will become fully appreciated as the same becomes betterunderstood when considered in conjunction with the accompanyingdrawings, in which like reference characters designate the same orsimilar parts throughout the several views, and wherein:

FIG. 1 is a rear upper perspective view of the present invention.

FIG. 2 is a front upper perspective view of the present invention.

FIG. 3 is a top view of the present invention with the gates closedwithin.

FIG. 4 is a top view of the present invention with the gates openedwithin.

FIG. 5 is a left side view of the present invention.

FIG. 6 is a rear view of the present invention.

FIG. 7 is a rear view of the present invention with the first portion ofthe ramp extended.

FIG. 8 is a rear view of the present invention with the second and thirdportion being pivoted outwardly with respect to the first portion.

FIG. 9 is a rear view of the present invention with the second and thirdportion being pivoted outwardly with respect to the first portion in asubstantially horizontal position.

FIG. 10 is a rear view of the present invention with the ramp fullyextended.

FIG. 11 is a left side view of the present invention with the ramp fullyextended.

FIG. 12 is a top view of the present invention with the first doors andthe second doors being pivoted inwardly.

FIG. 13 is a top view with the first doors and the second doors extendedorthogonally from the frame.

FIG. 14 is a rear view with the first doors fully extended and thesecond doors in a retracted position.

FIG. 15 is a rear view of the present invention showing the second doorsbeing extended with respect to the first doors.

FIG. 16 is a rear view of the present invention showing the second doorsbeing extended with respect to the first doors.

FIG. 17 is a rear view of the present invention showing the second doorsfully extended along side the ramp.

FIG. 18 is a left side view of the present invention showing the ramp,the first doors and the second doors fully extended.

FIG. 19 is a top view of the control unit.

FIG. 20 is a left rear upper perspective view of an alternativeembodiment illustrating a rear ramp structure fully extended for loadinganimals from ground level.

FIG. 21 is a left rear upper perspective view of an alternativeembodiment illustrating a rear ramp structure partially folded.

FIG. 22 is a left rear upper perspective view of an alternativeembodiment illustrating a rear ramp structure completed folded andpositioned within a storage position with respect to the frame.

FIG. 23 is a right rear upper perspective view of an alternativeembodiment illustrating a rear ramp structure partially folded.

FIG. 24 is a right rear upper perspective view of an alternativeembodiment illustrating a rear ramp structure completed folded andpositioned within a storage position with respect to the frame.

FIG. 25 is a side cutaway view of the alternative embodimentillustrating the rear ramp structure fully extended for loading animalsfrom ground level.

FIG. 26 is a side cutaway view of the alternative embodimentillustrating the rear ramp partially folded within the rear frame of therear ramp structure.

FIG. 27 is a side cutaway view of the alternative embodimentillustrating the rear ramp completely folded within the rear frame ofthe rear ramp structure.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Turning now descriptively to the drawings, in which similar referencecharacters denote similar elements throughout the several views, FIGS. 1through 19 illustrate an animal transporting system 10, which comprisesa frame 20 attached to a truck 12, a ramp 30 attached to the frame 20that is extendable from the frame 20, a pair of first doors 70 pivotallyattached to the frame 20 adjacent the ramp 30, a pair of second doors 72pivotally attached to the first doors 70, and a rear door 50, and a rearramp structure telescoping rearwardly and downwardly for the loading ofanimals at ground level. When the ramp 30 is fully extended, the firstdoors 70, the deck 32, and the second doors 72 are extended from theframe 20 along side the ramp 30 for retaining animals being loaded andunloaded from the frame 20. The frame 20 is formed for receiving one ormore animals within having a plurality of partitions 62 and inner doors60. A side door 40 and a rear door 50 are positioned within the frame 20for allowing loading and unloading animals from heightened areas such asa dock. A catwalk 26 attached to the upper portion of the frame 20 forallowing an individual to view the interior portion of the frame 20.

As shown in FIGS. 1 and 2 of the drawings, a truck 12 or similar vehicleis provided to support the frame 20. The truck 12 may include variousstructures and designs as can be appreciated. The purpose of the truck12 is to provide a self-powered device for transporting the animalscontained within the structure of the frame 20. Further discussion ofthe truck 12 will not be pursued because the variations to the truck 12are deemed readily apparent to one skilled in the art.

As shown in FIGS. 1 and 2 of the drawings, a frame 20 is provided thatis attached to a rear portion of the truck 12. The frame 20 isself-enclosed for retaining one or more animals within. The frame 20includes a plurality of walls that may be ventilated for the animalswithin. The frame 20 may be comprised of any shape, size and structurecapable of receiving and storing one or more animals as can beappreciated.

As shown in FIG. 2 of the drawings, at least one side door 40 ispositioned within the frame 20 for allowing the entry and exiting ofanimals from a heightened area such as a dock. It can be appreciatedthat the side door 40 is merely optional and is not a required elementof the present invention. The side door 40 may be opened and closed by athird cylinder 42 as shown in FIGS. 3 and 4 of the drawings. The thirdcylinder 42 is preferably comprised of a hydraulic cylinder, howevervarious types of actuator devices may be utilized to manipulate the sidedoor 40.

As shown in FIG. 1 of the drawings, at least one rear door 50 ispositioned within the frame 20 for allowing the entry and exiting ofanimals from a heightened area such as a dock. The rear door 50 may beopened and closed by fourth cylinder 52 as shown in FIGS. 3 and 4 of thedrawings. As with the third cylinder 42, the fourth cylinder 52 ispreferably comprised of a hydraulic cylinder, however various types ofactuator devices may be utilized to manipulate the side door 40.

As further shown in FIGS. 3 and 4 of the drawings, a plurality of innerpartitions 62 are positioned within the frame 20 for creating separateholding pens for the animals. In addition, a plurality of inner doors 60are positioned within the interior portion of the frame 20 for allowingguiding, grouping, positioning, and separating of the animals within.The inner doors 60 are preferably manipulated by actuator devices suchas hydraulic cylinders or the like. Various configurations may beutilized to construct the holding pens within the frame 20 of the animaltransporting system 10 as can be appreciated by one skilled in the art.The inner doors 60 and the inner partitions 62 are arranged so thatanimals positioned within will stay separated and guided to the desiredlocation.

As further shown in FIGS. 1 through 4 of the drawings, a catwalk 26 ispreferably positioned upon the upper portion of the frame 20 to allow anindividual to view the interior contents of the frame 20. A frontplatform 24 is also preferably attached to the side of the frame 20 asshown in FIGS. 2 through 4 of the drawings. A ladder 22 is attached tothe side of the frame 20 adjacent the front platform 24 for allowingaccess to the front platform 24 and the catwalk 26 for an individual.

As shown in FIGS. 1 and 5 through 10 of the drawings, a ramp 30 isslidably positioned within an opening within the frame 20 preferablyopposite of the side door 40. The ramp 30 is comprised of a firstportion 32, a second portion 34 and a third portion 36 interconnected toone another. A support member 38 extends upwardly from the first portion32 of the ramp 30 for providing support to the doors 70.

As shown in FIGS. 8 through 10 of the drawings, the first portion 32 ofthe ramp 30 is slidably positioned within the frame 20. The firstportion 32 represents a horizontal deck when extended from the frame 20as best shown in FIG. 10 of the drawings. The first portion 32 isslidably supported within the frame 20 by a slide rail system or similarstructure commonly utilized. An actuator device such as a hydrauliccylinder extends and retracts the first portion 32 of the ramp 30 withrespect to the frame 20 as shown in FIG. 7 of the drawings.

As shown in FIGS. 8 and 9 of the drawings, a second portion 34 of theramp 30 is pivotally attached to the distal portion of the first portion32 of the ramp 30. The second portion 34 is capable of being pivoteddownwardly with respect to the first portion 32 and a ground surface asshown in FIGS. 9 and 10 of the drawings. One or more first cylinders 37are mechanically attached between the first portion 32 and the secondportion 34 for manipulating the second portion 34 with respect to thefirst portion 32 of the ramp 30 as shown in FIGS. 7 through 10 of thedrawings.

As further shown in FIGS. 10 and 11 of the drawings, the third portion36 of the ramp 30 is slidably positioned within the second portion 34.As best shown in FIG. 10 of the drawings, the second portion 34 isextendable from the second portion 34 of the ramp 30 to engage a groundsurface for loading and unloading animals into the animal transportingsystem 10. A compression spring 80 is preferably attached between theinner end of the third portion 36 and the distal end of the secondportion 34 for assisting in extending the third portion 36 from withinthe second portion 34 when the second portion 34 is pivoted outwardlyfrom the first cylinders 37.

As shown in FIGS. 11 through 13 of the drawings, a pair of first doors70 are pivotally attached to the frame 20 about the opening thatreceives the ramp 30. The first doors 70 have a horizontal plane ofmovement having a closed state adjacent the side walls of the frame 20and an open state on opposing sides of the ramp 30. A pair of secondcylinders 74 are connected between the frame 20 and the first doors 70for pivoting the first doors 70 with respect to the frame 20 as bestshown in FIGS. 12 and 13 of the drawings. The second cylinders 74 may becomprised of any well-known actuator device.

As best shown in FIGS. 15 through 17 of the drawings, a pair of seconddoors 72 are pivotally attached to the first doors 70. A pair ofengaging rails 76 are attached to the outer portions of the second doors72 that receive guide pins 35 attached to the distal portions of thesecond portion 34 of the ramp 30. A pair of slots 78 within the engagingrails 76 allow the guide pins 35 from the second portion 34 to extendinto and out from the engaging rails 76 as shown in FIG. 11 of thedrawings.

As shown in FIG. 19 of the drawings, at least one central control unit90 is utilized to control the actuators and/or cylinders utilized uponthe animal transporting system 10. The control unit 90 includes aplurality of switches commonly utilized to open and close hydraulicvalves fluidly connected to the cylinders. Since control units 90 arecommonly utilized no further explanation is required.

FIGS. 20 through 27 illustrate the usage of a rear ramp structureattached to the rear of the frame 20 adjacent to the rear door 50. Therear ramp structure is comprised of a rear frame 54 pivotally attachedto the frame 20 pivoting along a horizontal plane. As best illustratedin FIG. 22, only one side of the rear frame 54 is pivotally attached tothe frame 20. A rear frame cylinder 56 is attached between the frame 20and the rear frame 54 for extending and contracting the rear frame 54with respect to the rear portion of the frame 20. The rear frame 54 hasa rear floor and a pair of opposing rear sidewalls 53 that guide theanimals from and to the rear door 50 as best illustrated in FIGS. 20 and21 of the drawings.

As shown in FIGS. 25 through 27 of the drawings, the rear floor 51preferably is declined from the frame 20 in a rearward manner. The rearfloor 51 preferably includes a gripping material or structure forassisting animals during their travel upon the rear floor.

As shown in FIGS. 20 through 27 of the drawings, a rear ramp frame 58 ispivotally attached to a distal end of the rear frame 54 and is pivotalalong a vertical plane. A rear ramp 55 and a pair of opposing rear rampsidewalls 59 are attached to the rear ramp frame 58 for guiding theanimals. A rear floor cylinder 57 is connected between the rear frame 54and the rear ramp frame 58 for pivoting the rear ramp frame 58 withrespect to the rear frame 54 as best illustrated in FIG. 26 of thedrawings.

As shown in FIG. 20 of the drawings, a rear control unit 49 ispositioned upon the rear ramp frame 58 which allows for the controllingof the rear ramp structure. Using the rear control unit 49 or the maincontrol unit 90, the user is able to control the pressurized fluid tothe rear frame cylinder 56 and the rear floor cylinder 57. When theoperator desires to load or unload animals through the rear door 50 ontoa ground level surface, the operator manipulates the rear control unit49 such that the rear frame cylinder 56 forces the rear frame 54outwardly so as to extend substantially rearwardly and substantiallysurrounding the rear door 50 as shown in FIG. 21 of the drawings. Theuser then manipulates the rear control unit 49 to cause the rear floorcylinder 57 to pivot the rear ramp frame 58 outwardly from the rearframe 54 as shown in FIGS. 20 and 25 of the drawings. As bestillustrated in FIG. 25 of the drawings, the rear floor 51 and the rearramp 55 preferably form a substantially continuous surface for theanimals to walk upon.

In use, the user positions the side of the animal transporting systemadjacent a feedlot pen or other animal holding area. The user thenactuates the control unit 90 so that the first doors 70 are manipulatedinwardly toward one another as shown in FIGS. 12 through 14 of thedrawings. As best shown in FIG. 7 of the drawings, once the first doors70 are fully extended outwardly with respect to the frame 20 the ramp 30is then extended outwardly along a horizontal plane with the distal endof the first portion 32 extending a distance above and beyond a feedbunk 14 and/or fence 16. The guide pins 35 attached to the verticallyoriented second portion 34 of the ramp 30 pass through the slots 78within the engaging rails 76 so that the guide pins 35 are properlypositioned within the engaging rails 76. When the pair of first doors 70are fully extended, the first portion 32 is completely enclosed with thesecond portion 34 and third portion 36 blocking the front portion of theopening from the frame 20. After the first portion 32 of the ramp 30 isfully extended, the second portion 34 is pivoted outwardlysimultaneously having the guide pins 35 slidably extend within theengaging rails 76 and simultaneously pivot the second doors 72 withrespect to the first doors 70 as shown in FIG. 15 of the drawings. Whenthe second portion 34 of the ramp 30 is substantially horizontal, thespring 80 begins to force the third portion 36 outwardly from within thesecond portion 34 of the ramp 30. When the second portion 34 of the ramp30 is inclined downwardly, the third portion 36 is extended outwardlyfrom the second portion 34 until the distal end of the third portion 36is in engagement with the ground surface as shown in FIG. 17 of thedrawings. The second doors 72 completely surround the second portion 34and a portion of the third portion 36 of the ramp 30 as shown in FIGS.17 and 18 of the drawings. The individual then may load or unloadanimals into the animal transporting system 10 as desired. Duringloading or unloading, the animals are guided by the inner doors 60 andinner partitions 60 to the desired location depending upon the positionof the inner doors 60. When the individual is finished, the aboveprocess is simply reversed until the ramp 30 is returned into the frame20 and the doors 70, 72 are adjacent the side of the frame 20 as shownin FIG. 1 of the drawings.

As to a further discussion of the manner of usage and operation of thepresent invention, the same should be apparent from the abovedescription. Accordingly, no further discussion relating to the mannerof usage and operation will be provided.

With respect to the above description then, it is to be realized thatthe optimum dimensional relationships for the parts of the invention, toinclude variations in size, materials, shape, form, function and mannerof operation, assembly and use, are deemed to be within the expertise ofthose skilled in the art, and all equivalent structural variations andrelationships to those illustrated in the drawings and described in thespecification are intended to be encompassed by the present invention.

Therefore, the foregoing is considered as illustrative only of theprinciples of the invention. Further, since numerous modifications andchanges will readily occur to those skilled in the art, it is notdesired to limit the invention to the exact construction and operationshown and described, and accordingly, all suitable modifications andequivalents may be resorted to, falling within the scope of theinvention.

1. An animal transporting system for loading, transporting and unloadingone or more animals, comprising: a first frame attached to a vehicle,wherein an interior portion of said first frame is capable of receivingat least one animal; a rear opening within said first frame; a rear rampstructure extendably attached to said first frame, wherein said rearramp structure comprises: a rear frame having a pair of rear sidewallsand a rear floor pivotally attached to said first frame, wherein saidrear frame is pivotally movable along a horizontal plane; a rear frameactuator connected between said first frame and said rear frame foractuating pivoting of said rear frame; a rear ramp frame having a pairof rear ramp sidewalls and a rear ramp floor pivotally attached to saidrear frame, wherein said rear ramp frame is movable along a verticalplane; and a rear floor actuator connected between said rear frame andsaid rear ramp frame for actuating pivoting of said rear ramp frame. 2.The animal transporting system of claim 1, including a second openingwithin said first frame and a second ramp extendably positioned withinsaid second opening and said first frame, wherein said second ramp iscomprised of: a first portion slidably positioned within said firstframe, wherein said first portion has a horizontal movement; and asecond portion pivotally attached to a distal portion of said firstportion.
 3. The animal transporting system of claim 2, wherein saidsecond ramp further includes a third portion slidably positioned withinsaid second portion.
 4. The animal transporting system of claim 3,including a spring attached between said second portion and said thirdportion.
 5. The animal transporting system of claim 1, wherein saidfirst frame includes at least one door and a plurality of innerpartitions and inner doors, wherein said plurality of inner doors aremechanically movable with hydraulic cylinders.
 6. The animaltransporting system of claim 5, including at least one actuatorconnected to said first frame and said at least one door.
 7. The animaltransporting system of claim 1, including a rear control unit forcontrolling said rear frame actuator and said rear floor actuator.
 8. Ananimal transporting system for loading, transporting and unloading oneor more animals, comprising: a first frame attached to a vehicle,wherein an interior portion of said first frame is capable of receivingat least one animal; a rear opening within said first frame; a rear rampstructure extendably attached to said first frame, wherein said rearramp structure comprises: a rear frame having a pair of rear sidewallsand a rear floor pivotally attached to said first frame, wherein saidrear frame is pivotally movable along a horizontal plane; a rear frameactuator connected between said frame and said rear frame for actuatingpivoting of said rear frame; a rear ramp frame having a pair of rearramp sidewalls and a rear ramp floor pivotally attached to said rearframe, wherein said rear ramp frame is movable along a vertical plane;and a rear floor actuator connected between said rear frame and saidrear ramp frame for actuating pivoting of said rear ramp frame; a secondopening within said frame; a second ramp extendably positioned withinsaid second opening and said frame, wherein said second ramp iscomprised of: a first portion slidably positioned within said frame,wherein said first portion has a horizontal movement; and a secondportion pivotally attached to a distal portion of said first portion;wherein said second ramp further includes a third portion slidablypositioned within said second portion and a spring attached between saidsecond portion and said third portion; wherein said frame includes atleast one door and a plurality of inner partitions and inner doors,wherein said plurality of inner doors are mechanically movable withhydraulic cylinders; at least one actuator connected to said first frameand said at least one door; a rear control unit for controlling saidrear frame actuator and said rear floor actuator.